| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor control device for suppressing vibration in stopping an operation of a compressor. SOLUTION: This control device of the compressor comprising a compressor main body 1 having periodical torque pulsation in accompany with rotation, a motor 2 for driving the compressor main body, and a supporting member 4 for supporting the compressor main body and the motor, further comprises an invertor 8 for variable-speed driving the motor, and a control means 9 for controlling the motor through the invertor, and the control means 9 has a shut-down control means 10 for changing an output frequency of the invertor so that a rotational frequency of the compressor becomes near a mechanical resonance frequency determined by inertia of the compressor and the motor, a spring constant of the supporting member and a damping constant, when the stop of the compressor is required, and then turns off the output of the invertor. COPYRIGHT: (C)2009,JPO&INPIT
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